2 leeks, washed and chopped
1 unwaxed lemon, finely grated zest only
1 onion
1 tbsp finely chopped parsley
1kg/2lb 4oz potatoes, cut into 5cm/2in chunks
1 bay leaf
3 cloves (optional)
3 tbsp plain flour
1 tbsp olive oil
pinch salt and white pepper
50g/2oz butter
50g/2oz butter, plus 25g/1oz for dotting on top of the pie
100g/3陆 oz cr猫me fra卯che
3 tbsp warm milk
500ml/1 pint milk
200g/7oz cod loin
100g/3陆oz raw king prawns
250g/9oz smoked haddock
50g/2oz frozen peas